N NorthlineCoating
Family-owned in Grand Rapids since 2005

Powder coating
that survives
real life.

We coat metal for people who can't afford to redo it. Industrial, automotive, and architectural finishes engineered for the Midwest climate — and built to outlast whatever comes next.

Turnaround 3–5 business days
Max part length 24 feet
Color library 200+ shades
Facility 48,000 sq ft
Cure temp 400°F
Technician applying powder coating in a spray booth at Northline facility
Why Northline

Built by coaters.
Run by coaters.

The difference between a finish that lasts a season and one that lasts a decade isn't the powder — it's everything around it. Pretreatment chemistry. Ground continuity. Oven dwell time. We obsess over the parts nobody sees.

Our 48,000 square foot facility in Grand Rapids runs two independent coating cells, so a rush job never pushes production work out the door.

  • In-house media blasting and chemical pretreatment
  • Real-time film-thickness verification on every rack
  • Salt-spray and impact testing on request
  • Full lot traceability from intake to shipment
More about us
Industries served

The sectors that trust us with their finish.

Agriculture

Implements and equipment that live outdoors.

Construction

Structural steel, railings, and architectural metal.

Automotive

Aftermarket parts, restoration, and OE suppliers.

Furniture

Contract and commercial-grade steel fixtures.

Energy

Enclosures, brackets, and utility infrastructure.

Food Processing

Stainless-adjacent coatings for washdown zones.

The process

Six steps.
No shortcuts.

Every job — from a single bracket to a ten-thousand-piece run — goes through the same line.

  1. 1

    Intake & Inspection

    Parts logged, photographed, and flagged for any surface defects before they enter the line.

  2. 2

    Blast & Pretreat

    Media blasting or 7-stage iron phosphate, depending on substrate and finish spec.

  3. 3

    Masking

    Threads, bores, and contact surfaces masked with high-temp silicone and tape.

  4. 4

    Powder Application

    Electrostatic application in a controlled booth. Film thickness measured wet and cured.

  5. 5

    Curing

    Batch ovens held at spec temperature for the full dwell time — no shortcuts on cure.

  6. 6

    QC & Release

    Adhesion, thickness, and visual checks logged per lot. Parts packed for shipment.

"
We've run every coating vendor in West Michigan at some point. Northline is the only one that has never shipped us a bad lot. Their pretreat line is what makes the difference — you can feel it in the first winter.
RK
Ryan Kessler Director of Operations, Van Dyke Fabrication
Van Dyke Fabrication Hartline Mfg. Cascade Steel Ridgeway Automation
Ready when you are

Send us your specs.
Get a real quote in 24 hours.

No sales pitch, no runaround. Send drawings or photos, quantities, and your target finish — we'll price it and tell you honestly whether we're the right shop for the job.